As beautiful as feather and rose tails can be, they often have ray and scale deformities and IMO, shouldn't be bred intentionally and if a FT or RT pops up, it shouldn't be used for breeding.
If you like FTs and want a pet, get one.
Personally, I like veiltails. I have CTs, HMs and VTs, and when my VTs are fully fit and have full tails, they are the prettiest of the lot.